Trim and cut the pork ribs into suitable pieces. Wash and chop the vegetables (tomatoes, yellow pepper, celery, and onion) into appropriate chunks.
2
Heat oil in a pan and sear the pork ribs on all sides until golden brown to enhance flavor.
3
Transfer the seared ribs and chopped vegetables into the inner pot of a thermal cooker.
4
Add white wine, chicken stock, and canned tomato paste. Season with salt and black pepper to taste.
5
Bring the mixture to a boil on the stovetop, then cover the lid.
6
Place the inner pot into the outer thermal container to retain heat and allow the ingredients to gently stew without continued heating on the stove until ready to serve.